Chair



FIG. 1 is a perspective view of a chair my design;

FIG. 2 is a front view of the design;

FIG. 3 is a back view of the design;

FIG. 4 is a right side view of the design;

FIG. 5 is a left side view of the design;

FIG. 6 is a top view of the design; and,

FIG. 7 is a bottom view of the design.

Any surfaces of the design not shown, including interior surfaces, form no part of the claimed invention. 

I claim the ornamental design for a chair, as shown and described. 